?RCS: $Id: libs.U,v 3.0.1.6 1997/02/28 16:09:11 ram Exp $ ?RCS: ?RCS: Copyright (c) 1991-1993, Raphael Manfredi ?RCS: ?RCS: You may redistribute only under the terms of the Artistic Licence, ?RCS: as specified in the README file that comes with the distribution. ?RCS: You may reuse parts of this distribution only within the terms of ?RCS: that same Artistic Licence; a copy of which may be found at the root ?RCS: of the source tree for dist 3.0. ?RCS: ?RCS: $Log: libs.U,v $ ?RCS: Revision 3.0.1.6 1997/02/28 16:09:11 ram ?RCS: patch61: replaced .a with $_a all over the place ?RCS: ?RCS: Revision 3.0.1.5 1995/07/25 14:12:05 ram ?RCS: patch56: now knows about OS/2 platforms ?RCS: ?RCS: Revision 3.0.1.4 1994/10/29 16:24:22 ram ?RCS: patch36: removed old broken thislib/thatlib processing (ADO) ?RCS: ?RCS: Revision 3.0.1.3 1994/06/20 07:05:44 ram ?RCS: patch30: code cleanup with if/elif by ADO and RAM ?RCS: patch30: undone patch23 for libswanted default setting ?RCS: ?RCS: Revision 3.0.1.2 1994/05/06 15:08:45 ram ?RCS: patch23: now includes ordered default libswanted variable (ADO) ?RCS: patch23: major cleanup for library lookups (ADO) ?RCS: ?RCS: Revision 3.0.1.1 1993/08/25 14:02:31 ram ?RCS: patch6: added default for libs ?RCS: ?RCS: Revision 3.0 1993/08/18 12:09:03 ram ?RCS: Baseline for dist 3.0 netwide release. ?RCS: ?MAKE:libs ignore_versioned_solibs libsfound libsfiles libsdirs libspath: \ test cat Myread Oldconfig Loc libpth package xlibpth so _a \ usesocks sed uselongdouble ?MAKE: -pick add $@ %< ?S:libs: ?S: This variable holds the additional libraries we want to use. ?S: It is up to the Makefile to deal with it. The list can be empty. ?S:. ?S:libsfound: ?S: This variable holds the full pathnames of the libraries ?S: we found and accepted. ?S:. ?S:libsfiles: ?S: This variable holds the filenames aka basenames of the libraries ?S: we found and accepted. ?S:. ?S:libsdirs: ?S: This variable holds the directory names aka dirnames of the libraries ?S: we found and accepted, duplicates are removed. ?S:. ?S:libspath: ?S: This variable holds the directory names probed for libraries. ?S:. ?S:ignore_versioned_solibs: ?S: This variable should be non-empty if non-versioned shared ?S: libraries (libfoo.so.x.y) are to be ignored (because they ?S: cannot be linked against). ?S:. ?T:xxx yyy thislib thisdir libswanted libstyle ?D:libs='' ?X: ?X: This order is chosen so that libraries -lndir, -ldir, -lucb, -lbsd, ?X: -lBSD, -lPW, and -lx only get used if there are unresolved ?X: routines at link time. Usually, these are backwards compatability ?X: libraries, and may not be as reliable as the standard c library. ?X: ?X: The -lsocket -linet -lnsl order has been reported to be necessary ?X: for at least one SVR4 implementation. ?X: -lc must proceed -lucb or -lbsd for most Solaris applications. ?X: -lc_s proceeds -lc so we pick up the shared library version, if ?X: it is available. ?X: ?X: The ordering of c, posix, and cposix is a guess and almost ?X: certainly wrong on about half of all systems. ?X: ?X: Set proper libswanted in your private Myinit.U if needed. ?X: ?X:: default ordered library list ?X:libswanted='net socket inet bind nsl nm sdbm gdbm ndbm dbm malloc dl' ?X:libswanted="$libswanted dld sun m c_s c posix cposix ndir dir ucb" ?X:libswanted="$libswanted bsd BSD PW x" ?X: ?INIT:: default library list ?INIT:libswanted='' ?INIT:: some systems want to use only the non-versioned libso:s ?INIT:ignore_versioned_solibs='' ?LINT:extern libscheck ?LINT:use libscheck ?LINT:extern p ?LINT:use uselongdouble : Looking for optional libraries echo " " echo "Checking for optional libraries..." >&4 case "$libs" in ' '|'') dflt='';; *) dflt="$libs";; esac case "$libswanted" in '') libswanted='c_s';; esac ?X: libsocks has nasty naming scheme. ?X: This does not work if somebody wants SOCKS 4. case "$usesocks" in "$define") libswanted="$libswanted socks5 socks5_sh" ;; esac libsfound='' libsfiles='' libsdirs='' libspath='' for thisdir in $libpth $xlibpth; do test -d $thisdir && libspath="$libspath $thisdir" done for thislib in $libswanted; do for thisdir in $libspath; do xxx='' if $test ! -f "$xxx" -a "X$ignore_versioned_solibs" = "X"; then xxx=`ls $thisdir/lib$thislib.$so.[0-9] 2>/dev/null|sed -n '$p'` $test -f "$xxx" && eval $libscheck $test -f "$xxx" && libstyle=shared fi if test ! -f "$xxx"; then xxx=$thisdir/lib$thislib.$so $test -f "$xxx" && eval $libscheck $test -f "$xxx" && libstyle=shared fi if test ! -f "$xxx"; then xxx=$thisdir/lib$thislib$_a $test -f "$xxx" && eval $libscheck $test -f "$xxx" && libstyle=static fi if test ! -f "$xxx"; then xxx=$thisdir/$thislib$_a $test -f "$xxx" && eval $libscheck $test -f "$xxx" && libstyle=static fi if test ! -f "$xxx"; then xxx=$thisdir/lib${thislib}_s$_a $test -f "$xxx" && eval $libscheck $test -f "$xxx" && libstyle=static $test -f "$xxx" && thislib=${thislib}_s fi if test ! -f "$xxx"; then xxx=$thisdir/Slib$thislib$_a $test -f "$xxx" && eval $libscheck $test -f "$xxx" && libstyle=static fi if $test -f "$xxx"; then case "$libstyle" in shared) echo "Found -l$thislib (shared)." ;; static) echo "Found -l$thislib." ;; *) echo "Found -l$thislib ($libstyle)." ;; esac case " $dflt " in *"-l$thislib "*);; *) dflt="$dflt -l$thislib" libsfound="$libsfound $xxx" yyy=`basename $xxx` libsfiles="$libsfiles $yyy" yyy=`echo $xxx|$sed -e "s%/$yyy\\$%%"` case " $libsdirs " in *" $yyy "*) ;; *) libsdirs="$libsdirs $yyy" ;; esac ;; esac break fi done if $test ! -f "$xxx"; then echo "No -l$thislib." fi done set X $dflt shift dflt="$*" case "$libs" in '') dflt="$dflt";; *) dflt="$libs";; esac case "$dflt" in ' '|'') dflt='none';; esac $cat <